Java Reference
In-Depth Information
"modeledClass",
"", "always", "10", "." ,"ModeledClass",
null, null );
C
Build MBean
descriptor
ModelMBeanInfo info =
builder.buildModelMBeanInfo( mbeanDesc );
RmiConnectorClient client = RMIClientFactory.getClient();
ObjectName mName = new ObjectName("JMXBookAgent:name=Modeled");
client.createMBean(
"javax.management.modelmbean.RequiredModelMBean",
mName );
String[] sig = { "java.lang.Object", "java.lang.String" };
Object[] params = { obj, "ObjectReference" };
client.invoke( mName, "setManagedResource", params, sig );
sig = new String[ 1 ];
sig[ 0 ] = "javax.management.modelmbean.ModelMBeanInfo" ;
params = new Object[ 1 ];
params[ 0 ] = info;
client.invoke( mName, "setModelMBeanInfo", params, sig );
Set resource
and MBean info
D
//store the MBean
client.invoke( mName,"store",null,null );
}
}
Persist MBean
The ModeledClass class contains the method getMyAttribute() , which the cre-
ated ModelMBean will use as an attribute. The class also contains the method
printAttribute() , which will be modeled as an operation. The main() method is
used to create a test of a ModelMBean managing an instance of this class.
After creating an instance of the ModeledClass , the main() method uses the Model-
MBeanInfoBuilder utility class to build a ModelMBeanInfo object. The main() method
first adds the attribute MyAttribute to the builder. To do this, it creates a Descrip-
tor object using the buildAttributeDescriptor() method, passing in the various
values to initialize its predefined fields. In this case, the main() method must
describe the attribute and indicate that its getter method is named getMyAt-
tribute() . After the descriptor has been built, it is added to the builder to create
an attribute entry for the ModelMBeanInfo object under construction.
Because the attribute has been added, the main() method must now create an
operation entry in the builder for the attribute's getter method, getMyAt-
tribute() . You add operations to the builder much the way you add attributes: by
building the descriptor and then calling the correct add-metadata-object method.
B
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